Lubricator.



amps# G. W. MANZBL LUBRIGATDR.

APPLIUATION FILED AUG. 13, 190e.

Patented Main 5, l1912.

4 SHEETS-SHEET 1.

bubrzwa'rium, f/f Lubrcators, Force feed,

Rmxps, Mechanism@ opeamd..

Q W. MANZBL.

LUBRIUATOR.

APPLIUATION FILED AUG. 13, 1900.

' @my a:

C. W. MANZEL.

LUBBIGATOR.

APPLICATION FILED AUG. 13, 1606. 1,01 9, 1 67. Patented Mar, 5, 1912..

4 SHEETB--SHBET 3.

g inve/24 mfxf" w @i2/A animaletti f7" Lubricators, Force feed,

f Pumps, mechanically operated.

UNITED STATES PATENT OFFICE.

CHARLES W. MANZE'L, OF BUFFALO, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO J, L. OSGOOD, OF BUFFALO, NEW YORK.

LUBRICATOR.

1,019,167. specification ef Letters ratent.

Patented Mar. 5, 1912. Application led August 13, 1906. Serial N o. 330,372.

To all 'whom it may concern.'

Be it known that I, CHARLES W. MANZEL, a citizen of the United States, residing at Buffalo, in the county of Erie and State 5 of New York, have invented a new and useful Improvement in Lubricators, of which the following is a specification.

This invention relates generally to force feed lubricators, and more particularly to an automatic lubricator of this class which is designed to supply oil to the engine-cylinders and otherparts of an automobile.

One of the objects of the invention is the provision of a light, neat and compact lubricator of this character.

Further objects are to provide the force pumps with convenient means for regulating the quantity of oil delivered by the same; to provide simple and reliable means for reciprocating the pump-plungers, and

to improve the construction of the lubricator in other respects.

In the accompanying drawings consisting of 4 sheets: Figure 1 is a transverse vertical 2i section of the lubricator in line 1-l, Fig. 2. Fig. 2 is a vertical longitudinal section in line 2-2, Fig. 1. Fig. 3 is a transverse vertical section in line 3-3, Fig. 4. Fig. 4 is a horizontal section in line 4 4, Fig. 1. Similar letters of reference indicate corresponding parts throughout the several Views. j' A indicates the body or reservoir of the y lubricator which when used on an automoe bile is mounted on the dash board A1. The

bodyV shown in the drawings is of rectangular form and preferably constructed of sheet metal. It has a removable top or cover B provided with a filling tube b which is nor- 40 mally closed by a cap b1. From this filling tube a strainer b2 is preferably suspended, for intercepting any solid foreign substances in the oil.

C indicates the barrels and C1 the pistons or vplungers of a plurality of force pumps arranged horizont-ally in the lower portion ofthe oil reservoir and adapted to deliver oil to the engine cylinders and other parts of` the automobile or other machine to be lubricated. These )umps are preferably double-acting and or this purpose each pump barrel comprises a primary cylinder e and a secondary cylinder o1 arranged in line with each other and connected by; an in- 55 tegral web'c2, a single piston C1 being arranged in the cylinders of each pump. The primary cylinder of each barrel is provided in its top with an inlet port d which is controlled by the adjacent portion of the piston and which when uncovered allows the oil to flow from the reservoir into said cylinder. Beyond this inlet port, the primary cylinder is provided with a delivery port or passage (Z1 containing a spring-pressed check valve d2. The casing of this valve is connected by a pipe c with a drip nozzle e1 arranged in the upper portion of a sight chamber E located within the reservoir. This chamber is mounted on the front wall of the reservoir and provided in its front side with a transparent'pane c2. The chamber E is common to and extends throughout the entire series of drip nozzles e1. Within the sight chamber and underneath each drip nozzle. is arranged a cup or funnel f which receives the drops of oil from the nozzle and from which the oil is conducted to the inlet` port g of t-he secondary pump cylinder 01 by a pipe g1, this inlet port being controlled by the adjacent portion of the piston C1. The secondary cylinder c1 is provided in its lower side beyond its inlet port g with a discharge port or passage 7L which is formed in a hollow depending' screw stem h1 passing through an opening in the bottom of the reservoir. Upon the projecting end of this stem is screwed a coupling fi, the reduced lower end of which receives a delivery pipe or conduit I leading to one of the` parts to be lubricated, a suitable studing box 2'1 being applied to the lower end of the coupling. The pump barrel is held from turning, in tightening said coupling by a stop-pin y' projecting from the bottom of the oil reservoir into a socket or opening in the lower side of the barrel, as shown in Figs. l and 2. A suitable check valve /c is arranged in the discharge passage It of each secondary cylinder c1 to prevent the return of the oil into the latter.

It will now be understood that when the piston of one of the force pumps moves toward the rear wall of the oil reservoir, its front end uncovers the inlet port Z of thc primary cylinder c, allowing the latter to become filled with oil. l/Vhen the piston moves in the opposite direction, it expels said charge of oil past the check Valve Z2 and through the pipe e into the drip nozzle el, whence it descends by drops into -the cup oil from its primary than from its secondary.

cylinder, in order to prevent the oil from overflowing the corresponding cup f. For this purpose, the inlet ports cZ, g of the two cylinders of each pump are so arranged that the inlet port of the primary cylinder is uncovered to a greater extentthan the inlet portof the secondary cylinder, when the corresponding end of the piston has fully retreated. It follows that upon the forward or effective stroke of the primary port-ion of the piston the inlet port of the primary cylinder' is fully covered later than is the corresponding port of the secondary cylinder upon the effective stroke of the secondary portion of the piston and a greater quantity of the oil is therefore allowed to leak or return from the primary cylinder into the reservoir than from the secondary cylinder, causing the primary cylinder to deliver less than the secondary cylinder. The dotted line in Fig. 1 indicates the extent to which the secondary portion of the piston covers the corresponding inlet port g when at the end of its return stroke.

The pistons of the several pumps may be driven from a rotary or other movable part of the automobile or other machine by any 'suitable means, but they are preferably reciprocated by the driving mechanism shown in the drawings, which is constructed as follo ws L is a rock-frame arranged lengthwise in the oil reservoir and having trunnions Z which are supported in bearings Z1 extending inwardly from the end walls of the reservoir, as shown in Fig. 2. From this rock-frame depend arms m having bifurcated lower ends which straddle' pins n passing transversely through the pistons C1, the pin of each piston projecting beyond the sides thereof and being engaged by two arms -of the rock-frame, as shown in Fig. 2. The

pins n, play in the spaces between the primary and secondary cylinders of the pumps. The rock-frame L is provided at one end with a' pair of jaws 0 which straddle an eccentric P journaled on a horizontal stud 79 projecting from the adjacent wall of the Upon the hub of this eccentric is. secured a worm wheel g which meshes wlth a worm g1 mounted on a driving shaft R. This shaft turns in a suitable bearing R1 secured in the rear wall of the reservoir and extending through the dash board A1,

the projecting end of the shaft carrying a grooved pulley R2 for driving it from a rotary shaft of the automobile, not shown. In the preferred construction illustrated in Figs. l and 3, the bearing R1 is provided at its outer end with a stutling box 11, It is apparent that the eccentric l is rotated from the driving shaft through the'worm gearing (j, g1, and that the eccentric in turn imparts a rocking movement to the frame L by acting upon the jaws '0.

ln the preferred construction shown in the drawings, the unequal delivery of the primary and secondary cylinders of vthe pump hereinbefore described is produced by arranging the inlet ports (Z and g at equal distances from a vertical line intersecting the axis of the trunnions Z, while the portion of the piston C1 extending from the center of its pin n to the end thereof working in the primary cylinder, is shorter than the portion of the piston extending from said center to its opposite end.

rlhe primary cylinder of each pump is preferably provided with a regulating piston or follower s by which the capacity or internal area of said cylinder can be varied to feed or deliver a greater or less predetermined quantity of oil. As shown in Fig. l, this follower is fitted in an extension s1 of the primary cylinder which communicates with the latter and is arranged in line therewith. The outward movement of the follower is limited by an adjustable stop plate or abutment. T arranged opposite its outer end and having a screw threaded opening which receives a rotary adjusting screw t. The stem of this screw passes through the front wall of the oil reservoir and terminates in a. knob or but-ton, as shown. The screw is suit-ably held against longitudinal movement in the wall of the reservoir and the stop-plate is held from turning on the screw by bearing at its flat lower edge upon the bottom of the reservoir, so that upon turning the screw, the stop plate adjusted toward or from the follower s. The opposing end of the latter is hollow or recessed, as shown, to receive the end of the adjusting screw when the latter projects beyond the stop-plate T.

Upon the forward. stroke of the piston C1 vin the primary cylinder @the regulating follower s is forced outward by the column of oilin said cylinder until the follower strikes the corresponding stop-plate T, the oil entering the portion of the extension sl vacated b v the displaced follower. As soon. as the .'lollower is thus arrested, the continued pressure in the primary cylinder overcomes the spring of the check valve (Z2, opening the latter and delivering a greater or less charge of oil through. the drip nozrle c into the cup f, according to the extent of travel of the follower permitted by yf Lubricators, Force feed,

Pumps, Mechanicaly operated.

its stop. As the piston of the pump has a uniform predetermined stroke, the capacity of the primary cylinder c is augmented more or less by its extension s1, according as the follower is allowed to recede to a. greater or less extent by its stop. It follows that by increasing the capacity of the primary cylinder, a smaller quantity of oil will be pumped through the sight chamber .E and delivered into the secondary cylinder c1 of the pump. I-Ience, if it is desired to deliver the maximum quantity of oil, the stop plate T is adjusted to its innermost position, while if a smaller quantity is to be supplied, the stop-plate is moved outwardly or away from the adjacent end of the pump barrel a greater or less distance.

By arranging the regulating follower, as shown, the same is located below the level of the inlet port Z of the primary pump, thereby submerging the follower at all times and preventing leakage of the atmosphere past the same'into the primary cylinder 0. U is a gage glass preferably arranged in one of the front corners of the oil reservoir, as shown in Figs. 3 and 4l.

The multiple lubricator herein shown has six force-pumps and a like number of delivery pipes or feeds, but a greater or less nunber may obviously be employed, if desire Aside from the advantages of a reliable sight feed and means for regulating the quantity of oil delivered by the pumps, the lubricator is neat, light and compact in construction and comparatively free from projections, rendering it especially desirable for use on automobiles.

I do not wish to claim broadly in this application the adjust-able follower s, as the same forms the subject of Letters Patent of the United States No. 920,769,vgranted to me May 4, 1909.

I cla-im as my invention:

l. In a lubricator, t-he combination of a reservoir, a pump supplied therefrom and comprising a primary cylinder, a secondary cylinder and a piston common to both cylinders, a conduit connecting the outletof the primary cylinder with the inlet-of the secondary cylinder, and a sight device arranged in said conduit, the primary portion of the pump being constructed to deliver a smaller quantity of oil than the secondary portion thereof, substantially as set forth.

2. In, a lubricator, the combination of a reservoir, a pump supplied therefrom and comprising a primary cylinder, a secondary cylinder and a piston common to both cvlindcrs, the primary cylinder having an inlet port communicating with the reservoir, a

Copies of this patent may be obtained for ive cents each, by addressing the Commissioner of Patents,

sight device connected with the discharge port of the primary cylinder, and a conduit connecting the sight device with the. inlet port of the secondary cylinder, the primary portion of the pump having its ports constructed and arranged to deliver a smaller quantity of oil than the secondary portion thereof, substantially as set forth.

3. In. a lubricator, the combination of a reservoir, a pump supplied therefrom and comprising a primary cylinder, a secondary cylinder and a piston common to both cylinders, the primary cylinders having an 1 nlet port communicating with thc reservoir, a sight device connected with the discharge port of the primary cylinder, and a conduit connecting the sight device with the inlet port of the secondary cylinder, the inlet ports of the two cylinders and the piston being so arrangedvthat the primary part of the piston uncovers the inlet port of the primary cylinder to a greater extent than the secondary port of the piston uncovers the inlet port of the secondary cylinder, substantially as set forth.

l. In a lubricator, the combination of a reservoir, a pump supplied therefrom, a follower arranged in one end of the pumpcylinder, a stop plate arranged opposite the outer end of the follower, and an adjusting screw engaging said plate and passing through the wall of the reservoir, substantially as set forth.

5. In a lubricator, the combination ofna reservoir, a pump supplied therefrom, a follower arranged in one end of the pump cylinder, a non-rotary stop plate arranged opposite the outer end of the follower, and a rotary adjusting screw held against longitudinal movement in the wall. of the reservoir and engaging said stop-plate, substantially as set forth.

6. In a lubricator, the combination of a reservoir, a plurality of pumps arranged in the lower portion of the reservoir and supplied therefrom, a single rock frame journaled in the reservoir and connected with the several pump-pistons, said frame being provided within the reservoir with a pair of actuating jaws, a rotary eccentric engaging between said jaws, a driving shaft, and worm gearing also arranged in the reservoir and connecting the eccentric with said shaft, substantially as set forth.

Witness my hand this 9th day of August, 1906.

CHARLES WV. MANZEL.

Vi tnesses C. F. GnYnn, E. M. GRAHAM.

Washington, D. C. 

